[  978.790064][T21303] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  978.790524][T21303] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  979.764797][T21351] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  979.765737][T21351] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode